Pipe-coupling.



No. 776,971. Q PATENTED DEC. 6, 1904 J D. WALSH.

PIPE COUPLING.

APPLICATION FILED APR. 22 1904.

N0 MODEL. 3 SHEETS-SHEET 1.

f9 02 3 k b 1 D2 c WITNESSES \NVENTOR ATTORNEY PATENTED DEC. 6, 1904.

J. D. WALSH.

PIPE COUPLING.

APPLICATION FILED APE; 22.1904.

3 SHEETS-SHBET 2.

)HUKODBL.

WITNESSES- iNvENTOR 63 ATTORNEY J. D. WALSH.

PIPE COUPLING.

APPLIOATION FILED APR. 22. 1904.

N0 MODEL.

PATENTED DEC. 6, 1904.

3 SHEETSBHEET 3.

INVENTOR ATTORNEY.

nrrn Sirairles Patented December 6, 1904..

arniir riucn.

JOHN D. WALSH, OF LOUKPORT, NEW YORK, ASSIGNOR TO AMERICAN DlSTRICTSTITEAM COMPANY, OF LOCKPORT, NEW YORK, A CORPO- RATION OF NEW YORK.

PlPlE-"CQUPUING.

SPECIFICATION forming part of Letters Patent No. 776,971, dated D mber6, 1904.

Application filed April 22, 1904.

T0 at! whom it may concern.-

Be it known that l, JOHN D. lVALsI-I, a citizen of the United States,residing at Lockport, in the county of Niagara and State ofNew York,have invented certain new and useful Improvements in Pipe-Couplings; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to detachable pipecouplings.

The object of my invention is to provide an improved form of device ofthis character comprising few parts and of simple construction, whichwill efficiently do away with the necessity for pipe-elbows of variousangles and the use of bent pipe.

A further object is to provide expeditious means of simple constructionwhich may be placed between the ends of adjacent pipes or between theend of a pipe and a fitting or between two littings. whereby rotation ofsuch means will vary the axes of such connections from a line to anyangle desired within certain limits.

A further object of my invention is to provide a solid bearing for boltsused in connection and combination with my invention; and my inventionconsists of the construction, ar- .rangement, and combination of partsin this apr'ilication illustrated and described.

In the accompanying drawings, forming a part of this application, inwhich similar reference characters indicate corresponding parts, I haveillustrated one form of embodiment of my invention, and in which- Figure1 is a plan view of one of the members of my device. Fig. 2 is asectional View of both members of my device engaged and showing indotted lines one of said members in a second position. Fig. 3 is asectional view of both of the members of my device separated, but inrelative operative position. Fig. 4c is a sectional view of two adjacentpipe ends coupled together by my invention,

and Fig. 0

is a sectional view showing the Serial No. 204,472. (No model.)

application of my invention in connecting a pipe end and a fitting.

Referring to the drawings, A and B indicate adjacent pipe ends, and aand b flanges thereon, held together, as by bolts E orother suitablemeans. Disposed between the boltheads and the flanges are wedge-shapedwashers c, constructed to afford a solid bearing for the bolt-heads whenmy invention is applied to any ordinary flanged pipe or fitting. Findicates a fitting, having a flange f, to be used in any manner similarto a pipe end. Disposed between the opposed pipe ends are rings C D,having in their peripheries openings c (1", adapted to receive a spanneror similar instrument to rotate one ring upon the other. The opposingfaces C 1) of the rings are cut obliquely to their axes, making the twomembers angularly adjustable with reference to each other. Around theinner edge of face C is a narrow rabbet c, leaving a widebearing-surface around the remainder of the face, and on the inner edgeof face I) is a thin annular rib (Z, the rest of the face forming a widebearing-surface D When the parts are assembled, surfaces C" .1)" form atight joint, and rib (Z takes into rabbet 0, but is of such diameter asto leave an annular chamber 0 between it and the inner wall of therabbet and preferably is of such depth as not to contact with the bottomof the rabbet, thus obviating danger of the close l.)earing of surfacesl) being destroyed by the collection of foreign matter in the rabbet.

The advantages of the foregoii'ig construction will be apparent when itis remembered that an oblique section of a ring is not aperfect circle.For this reason and also on account of the expansion of the rabbet dueto the heat of the fluid within the pipe the rib would be certain tobind in the rabbet and prevent rotation were annular chamber a notprovided. It is found that this chamber serves as a reservoir for steamor other fluid passing through the pipe, particularly when rib (Z ismade short for the purpose speciiiedor when packing-disks are insertedbetween the rings separating the rib from the rabbet. By making the riband rabbet narrower than the bearing-surfaces annular chamber 0 islocated well toward the inner edges of the rings, whereby the width ofthe bearing-surfaces prevents fluid from leaking from the chamberoutward.

In the operation of my invention when two pipes are connected by mydevice in the position shown in Fig. 52 in full lines their axes willcoincide. It is obvious that the rotation of one or both of the membersC D will throw the axes of the pipes out of alinement, forming an anglewhich is greatest when the thinnest edges of these two members areadjacent to each other. lt will be seen that any angle of adjacent pipescan be secured in a simple and expeditious though very efiicient way byrotating one of these members. Steam-tight joints may be made betweenthe parts by the use of gaskets or in any suitable and usual way.

Having thus fully described my invention and without limiting myself tothe exact forms of construction and arrangement herein shown anddescribed, what I claim as new, and desire to secure by Letters Patent,is-

1. Adevice for angularly adjusting adjoining pipe ends, comprising tworings having their opposing faces cut obliquely to their axes, theoblique face of one of the rings being provided with a groove around itsinner edge, the remainder of the face forming a bearing-surface widerthan the groove, and the oblique face of the other ring being providedwith an annular rib occupying the groove and of such width as to leavean annular chamber between it and the inner wall of the groove, the restof the face forming a bearing-surface wider than the rib and contactingwith the other bearing-surface.

2. A device for angularly adjusting adjoining pipe ends, comprising tworings having their opposing faces cut obliquely to their axes, theoblique face of one of the rings being provided with a groove around itsinner edge, the remainder of the face forming a bearing-surface widerthan the groove, and the oblique face of the other ring being providedwith an annular rib occupying the groove, the rib being of less depththan the groove and of such width as to leave an annular chamber betweenit and the inner wall of the groove, the rest of the face forming abearing-surface wider than the rib and contacting with the otherbearing-surface.

In testimony whereof I affix my signature in the presence of twosubscribing Witnesses.

JOHN D. WVALSH.

'itness es:

CHARLES R. BISHOP, H. J. BABoooK.

